Click on the third or sixth rank to set the en passant target square.

Book: ∞ / 0

# move proof disproof
1 f5 0
2 c4 0
3 a5 0
4 Ba6 0
5 Nf8 0
6 Bb7 0
7 Nf6 0
8 e5 0
9 Rd8 0
10 Re8 0
11 Rf8 0
12 Nc6 0
13 Ke6 0
14 Ng5 0
15 Kd6 0
16 f6 0
17 Rg8 0
18 Ke8 0
19 Kd8 0
20 Kc7 0
21 Kc6 0
22 e6 0
23 a6 0
24 Na6 0